Lumikari TJ, et al. - Since recent trials emphasized continuous electrocardiogram (ECG) monitoring in the detection of occult AF, researchers screened AF using an external miniaturized recorder with an adhesive electrode in patients meeting the embolic stroke of unknown source (ESUS) criteria. For this investigation, patients (aged ≥50) with recent ESUS were prospectively screened and allocated to wear a 1-lead ECG device capable to record continuous ECG for up to 4 weeks. The authors concluded that prolonged ECG monitoring with an external device utilizing adhesive electrodes was feasible in ESUS patients, since 9 out of 10 patients used the device appropriately and AF was identified in 1 out of 8 patients.